Meson B-c annihilation to leptons and inclusive light hadrons
文献类型：期刊论文
| 作者 | Wu, XG; Chang, CH; Chen, YQ ; Fang, ZY; Wu, XG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2003 |
| 卷号 | 67期号:9页码:- |
| 关键词 | k+->mu(+)Nu-gamma Decay Muon Polarization Quark-model z(0) Decay Qcd Charmonium Lifetime Collisions Violation h(c) |
| ISSN号 | 0556-2821 |
| 英文摘要 | The annihilation of the B-c meson to leptons and inclusive light hadrons is analyzed in the framework of nonrelativistic QCD (NRQCD) factorization. We find that the decay mode, which escapes from the helicity suppression, contributes a sizable fraction width. The branching ratio due to the contributions from the color-singlet component of the B-c meson can be of the order of 10(-2). The contributions from the color-octet components are estimated. With the consideration of the NRQCD velocity scaling rule, we find that the color-octet contributions are sizable too, especially in a certain phase space of the annihilation. They are greater than (or comparable to) those from the color-singlet component. A few observables on the spectrum of charged leptons (e, mu) relevant to the contributions are suggested that may be used as measurements of the evidence of the color-octet components in future B-c experiments. A kind of typical "long-distance contributions'' in the annihilation is also estimated. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000183313000017 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13312]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Wu, XG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wu, XG,Chang, CH,Chen, YQ,et al. Meson B-c annihilation to leptons and inclusive light hadrons[J]. PHYSICAL REVIEW D,2003,67(9):-. |
| APA | Wu, XG,Chang, CH,Chen, YQ,Fang, ZY,&Wu, XG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2003).Meson B-c annihilation to leptons and inclusive light hadrons.PHYSICAL REVIEW D,67(9),-. |
| MLA | Wu, XG,et al."Meson B-c annihilation to leptons and inclusive light hadrons".PHYSICAL REVIEW D 67.9(2003):-. |
入库方式： OAI收割
来源：理论物理研究所
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